1240961600 has 42 divisors (see below), whose sum is σ = 3053545074. Its totient is φ = 496384000.

The previous prime is 1240961531. The next prime is 1240961609. The reversal of 1240961600 is 61690421.

It can be written as a sum of positive squares in 3 ways, for example, as 10916416 + 1230045184 = 3304^2 + 35072^2 .

It is not an unprimeable number, because it can be changed into a prime (1240961609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 386201 + ... + 389400.

Almost surely, 2^1240961600 is an apocalyptic number.

1240961600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240961600 is an abundant number, since it is smaller than the sum of its proper divisors (1812583474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240961600 is an equidigital number, since it uses as much as digits as its factorization.

1240961600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775623 (or 775608 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1240961600 is about 35227.2848797633. The cubic root of 1240961600 is about 1074.6147095901.

The spelling of 1240961600 in words is "one billion, two hundred forty million, nine hundred sixty-one thousand, six hundred".